Originally posted by oldgeek
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So assuming you USB drive is sdb when you plug it in, and you have a partition table on it, and you're using the first partition, the command line entry is:
sudo mkfs.btrfs -f /dev/sdb1
That's it. It will complete in a few seconds or less because the data structure is created as it's used unlike most other file systems that must pre-prepare the entire file system before use.
Of course, you're free to use the Partition Manager to do this as well.
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